Thank you for contacting us.
Unfortunately, the GetValue extension method has not been implemented for the ForumPost class. I will need to check to see if this is expected or a bug and I will get back as soon as I know.
To create custom fields in pages you must first make PageData into a dynamic meta type:
var metaManager = Telerik.Sitefinity.Data.Metadata.MetadataManager.GetManager();
var type = metaManager.CreateMetaType(
var dynamicContent = App.WorkWith().DynamicData().Fields().Where(dc => dc.FieldName ==
var pg = App.WorkWith().Pages().Where(pk => pk.Title ==
I hope this works for you.
the Telerik team
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